/*
 * Copyright IBM Corp. and others 2001
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 */

package org.openj9.test.management.util;

/**
 * Kill a given process after a specified time limit.
 * The watchdog stops running if it is interrupted before the time limit.
 */
public class ChildWatchdog extends Thread {
	Process child;
	int killTimeout;

	public ChildWatchdog(Process child, int timeout) {
		super();
		this.child = child;
		this.killTimeout = timeout;
	}

	@Override
	public void run() {
		try {
			sleep(killTimeout);
			child.destroy();
			System.err.println("Child Hung");
		} catch (InterruptedException e) {
			return;
		}
	}
}
